HRCT finding | B | 95% CL | p‐value | |
Lower | Upper | |||
Sub. dependent opacity | ||||
Exsmokers | 0.046 | −0.097 | 0.189 | 0.529 |
Current smokers | 0.026 | −0.122 | 0.174 | 0.732 |
Sub. curvilinear opacity | ||||
Exsmokers | −0.137 | −0.381 | 0.106 | 0.268 |
Current smokers | −0.289 | −0.540 | −0.037 | 0.025 |
Sub. septal lines | ||||
Exsmokers | −0.287 | −0.559 | −0.015 | 0.039 |
Current smokers | −0.288 | −0.569 | −0.007 | 0.045 |
Parenchymal bands | ||||
Exsmokers | −0.132 | −0.366 | 0.102 | 0.267 |
Current smokers | −0.016 | −0.257 | 0.226 | 0.899 |
Sub. nodules | ||||
Exsmokers | −0.118 | −0.289 | 0.054 | 0.179 |
Current smokers | −0.146 | −0.323 | 0.032 | 0.107 |
Honeycombing | ||||
Exsmokers | −0.004 | −0.120 | 0.113 | 0.950 |
Current smokers | 0.044 | −0.076 | 0.165 | 0.470 |
Ground-glass opacity | ||||
Exsmokers | 0.044 | −0.063 | 0.152 | 0.416 |
Current smokers | 0.083 | −0.027 | 0.194 | 0.139 |
Centrilobular emphysema | ||||
Exsmokers | 0.218 | −0.097 | 0.534 | 0.175 |
Current smokers | 0.546 | 0.220 | 0.872 | 0.001 |
Paraseptal emphysema | ||||
Exsmokers | 0.173 | −0.078 | 0.424 | 0.175 |
Current smokers | 0.370 | 0.111 | 0.629 | 0.005 |
Panlobular emphysema | ||||
Exsmokers | 0.191 | −0.084 | 0.467 | 0.173 |
Current smokers | 0.277 | −0.079 | 0.562 | 0.057 |
Bullae | ||||
Exsmokers | 0.051 | −0.158 | 0.260 | 0.630 |
Current smokers | 0.153 | 0.165 | 0.369 | 0.165 |
Bronchial wall thickness | ||||
Exsmokers | 0.182 | 0.023 | 0.342 | 0.025 |
Current smokers | 0.266 | 0.101 | 0.430 | 0.002 |
Bronchiectasis | ||||
Exsmokers | 0.015 | −0.117 | 0.148 | 0.820 |
Current smokers | 0.031 | −0.105 | 0.168 | 0.653 |
B: regression coefficients
CL: confidence limits from analyses of covariance
HRCT: high-resolution computed tomography
Sub.: subpleural
Never-smokers form the reference group. A positive B indicates a larger score of the exposure group when compared with never-smokers, and a negative B a smaller score